Have always purchased this style or brand of protector as they are really sticky and the strongest I have found yet.I am not saying they are the strongest out there as I have not tried them all, but these are the strongest I have tried.
As long as you apply them in the right way then you will have no problems, just make sure there is no dust in the room floating around and your nor having children running around you and you'll be fine.
I have a video on how to apply screen protectors in the link below, this is the way I do it as Im in construction so tend to break a few now and then. If you follow the instruction on the video you will have perfectly fitted screen protector with no bubbles or dust in between spoiling your mobiles screen and peeing you off lol